| Every since installing leader gears and a NA speed sensor I have been having these issues. I can't imagine they are related but figured I would mention it. So between 4k and 7k rpm under WOT I often get a bit of hesitation as if its miss-firing. Also, while at idle my AFR is wandering from lean to rich but mostly stuck on the rich end(13.5:1 - 10.5:1). I have checked for boost leaks and have only one small leak on my Z1 tb shaft seal. I have checked compression and got:
6: 155
4: 160
2: 155
5: 155
3: 145
1: 155 I have checked fuel pressure and have around 38psi at idle and around 48 with the vacuum hose disconnected. Engine Vacuum is around 20 When I disconnect the vacuum hose to the fpr the afr stays closer to 14.7:1 but if I apply vacuum to the fpr it goes rich again. The worse part of it all is sometimes afr is perfectly fine, sometimes rich, sometimes lean. I can't figure this out since it is not consistent. I always thought the ecu was in closed loop while at idle but my FSM says it is not...is that true?
"...You can't take it with you, live life to it's fullest, love your kids and
your wife and the simple things in life....smile and laugh as often as you
can!" sawbonez September 11, 2011 at 6:11 PM
Formerly: ZEVAN (Ca), Evan3zx(ca)
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